.w{
    width: 1353px;
    height: 100%;
    /* background-color: pink; */
    margin: 0 auto;
    padding-top: 0.1px;
}
/* .main{
    height: 688px;
    margin-top: 97px;    
} */
.main-1{
    float: left;
    width: 287px;
    height: 494px;
    background: url(../img/zuo1.png) no-repeat center;
    background-size: cover;
    margin: 97px 25px 97px 60px;
}
.main-2{
    float: left;
    width: 287px;
    height: 494px;
    background: url(../img/zuo2.png) no-repeat center;
    background-size: cover;
    margin: 97px 25px 97px 0;
}
.main-3{
    float: left;
    width: 287px;
    height: 494px;
    background: url(../img/zuo3.png) no-repeat center;
    background-size: cover;
    margin: 97px 25px 97px 0;
}
.main-4{
    float: left;
    width: 287px;
    height: 494px;
    background: url(../img/zuo4.jpg) no-repeat center;
    background-size: cover;
    margin: 97px 0  97px 0;
}
.main-a{
    font-size: 20px;
    color: #626262;
    font-weight: bolder;
    margin: 124px 0 0 35px;
}
.main-b{
    font-size: 16px;
    color: #4d4c4c;
    margin: 45px 0 0 35px;
}
.nav{
    width: 100%;
    height: 395px;
    background-color: #f2f2f2;
    overflow: hidden;
}
.nav-1{
    width: 380px;
    height: 263px;
    /* background-color: crimson; */
    float: left;
    margin: 61px 0 0 333px;
}
.nav-2{
    position: relative;
    width: 496px;
    height: 234px;
    /* width: 600px;
    height: 300px; */
    /* background-color: blue; */
    float: left;
    margin: 84px 0 0 329px;
}


.nav{
    width: 100%;
    height: 395px;
    background-color: #f2f2f2;
    overflow: hidden;
}
.nav-1{
    width: 380px;
    height: 263px;
    /* background-color: crimson; */
    float: left;
    /* margin: 61px 0 0 333px; */
    margin: 61px 0 0 50px;
}
.nav-2{
    position: relative;
    width: 496px;
    height: 234px;
    /* width: 600px;
    height: 300px; */
    /* background-color: blue; */
    float: left;
    margin: 84px 0 0 329px;
}


.nav-1-a{
    font-size: 18px;
    color: #5d5d5d;
}
.nav-1-b{
    height: 117px;
    font-size: 14px;
    color: #9fa2a2;
    line-height: 29px;
    margin-top: 50px;
    overflow: hidden;
}
.nav-q{
    float: left;
    width: 16px;
    height: 17px;
    background: url(../img/qq.png) no-repeat center;
    background-size: cover;
    margin: 20px 17px 0 0;
}
.nav-x{
    float: left;
    width: 20px;
    height: 16px;
    background: url(../img/weixin.png) no-repeat center;
    background-size: cover;
    margin: 21px 17px 0 0;
}
.nav-b{
    float: left;
    width: 20px;
    height: 15px;
    background: url(../img/weibo.png) no-repeat center;
    background-size: cover;
    margin: 21px 0 0 0;
}
.nav-1-c{
    float: left;
    height: 15px;
    width: 100%;
    font-size: 14px;
    color: #9fa2a2;
    margin-top: 25px;
}


.nav-2-a{
    position: absolute;
    top: 1px;
    left: 4px;
    font-size: 14px;
    color: #bfbdbd;
}
.nav-2-b{
    position: absolute;
    top: 1px;
    left: 183px;
    font-size: 14px;
    color: #bfbdbd;
}
.nav-2-c{
    position: absolute;
    top: 1px;
    left: 363px;
    font-size: 14px;
    color: #bfbdbd;
}
.nav-2-d{
    position: absolute;
    top: 113px;
    left: 4px;
    font-size: 14px;
    color: #bfbdbd;
}
.nav-4{
    position: absolute;
    bottom: 0;
    left: 0;
    color: #fff;
    width: 61px;
    height: 24px;
    background-color: #474646;
}
.nav-3-a{
    position: absolute;
    top: 67px;
    left: 1px;
    display: block;
    width: 135px;
    height: 1px;
    background-color: #706d6d;
}
.nav-3-b{
    position: absolute;
    top: 67px;
    left: 181px;
    display: block;
    width: 135px;
    height: 1px;
    background-color: #706d6d;
}
.nav-3-c{
    position: absolute;
    top: 67px;
    right: 0;
    display: block;
    width: 135px;
    height: 1px;
    background-color: #706d6d;
}
.nav-3-d{
    position: absolute;
    top: 166px;
    right: 0;
    display: block;
    width: 495px;
    height: 1px;
    background-color: #706d6d;
}


